Materials Literature
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In the case of a hypothetical severe accident in a nuclear pressurized water reactor, the formation of radiotoxic RuO4(g) may occur in the reactor containment building, resulting from the interactions of ruthenium oxide deposits with the oxidizing medium induced by air radiolysis. Consequently, this gaseous ruthenium…
The kinetics of the partial oxidation of isobutane with molecular oxygen on Rh(111) single-crystal surfaces were studied by using a collimated molecular beam under ultrahigh vacuum conditions. Both hydrogen and water were shown to form as primary products, not after secondary reforming or water-gas shift steps as it h…
We report on fabrication of hybrid inorganic-on-organic thin film structures with polycrystalline zinc oxide films grown by atomic layer deposition technique. ZnO films were deposited on two kinds of thin organic films, i.e. pentacene and poly(dimethylosiloxane) elastomer with a carbon nanotube content (PDMS:CNT). Sur…
Here we report the two-step synthesis of high aspect-ratio gold nanorods via combining low pH growth and higher cetyltrimethylammonium bromide concentration. The approach is motivated by the "slow growth principle," which has been demonstrated recently as a effective protocol to prepare high aspect-ratio one-dimension…
This paper deals with the development of a modeling approach for describing the magnetomechanical behavior of magnetostrictive actuators. The model couples the finite element solution, accounting for eddy currents in the magnetic materials, with a modified Preisach-type model, identified starting from the static chara…
The phase separation of a binary fluid can lead to the creation of two horizontal fluid layers with different concentrations resting on a solid substrate and divided by a diffuse interface. In the framework of the Cahn–Hilliard equation, it is shown analytically and numerically that such a layered system is subject to…
Focused electron-beam-induced deposition (EBID) allows the rapid fabrication of three-dimensional nanodevices and metallic wiring of nanostructures, and is a promising technique for many applications in nanoresearch. The authors present two topics on platinum-containing nanostructures created by EBID. First, they repo…
The spectral-luminescence manifestations of the formation of quantum dot (QD)-phthalocyanine complexes as a result of electrostatic interaction have been investigated. Effective QD luminescence quenching has been found in complexes of this type. The luminescence of the molecules associated in complexes with QDs is als…
The behavior of the elastic moduli and sound absorption in a terbium orthoborate single crystal at low temperatures is studied. The components of the tensor of the elastic moduli of this system are determined. A structural phase transition and a transition of the magnetic subsystem into an antiferromagnetically ordere…
The seedlayer effect on crystallographic structure and magnetic properties of cosputtered SmCo films on Cu underlayer was investigated. Highly textured (001) SmCo5 thin films were obtained by introducing a thin Ti or Ta seedlayer. Especially, with the Ta seedlayer, the half maximum of the rocking curve of SmCo (001) p…
A conductive polyaniline/poly(ethylene terephthalate) (PANI/PET) composite film was fabricated via the oxidative graft copolymerization of aniline (ANI) onto the plasma-induced poly(acrylic acid) (PAAc) grafted PET surface. The attenuated total reflectance Fourier transform infrared spectroscopy spectra (ATR-FTIR) and…
Carbon nanofibers (CNFs) and activated carbon (AC) are two forms of carbon with different shape and surface properties. These two carbon materials were used as additive/nucleation agents in the polystyrene extrusion foaming process. Carbon dioxide (CO 2 ) was used as the blowing agent. Both additives showed better pro…
Environmental protection and legislative pressure to eliminate the use of solvents in the adhesive industry have inspired the search for safer alternatives. In the area of contact adhesives, the waterborne route has proved to be of particular interest. Based on the synergistic effect of polychloroprene latex and styre…
A Pt/BaCO3/Al2O3 model NO x storage-reduction catalyst, which was prepared as a thin film (∼100 Å) on the surface of tantalum foil, was studied by X-ray photoelectron spectroscopy (XPS). It was found that the Pt/BaCO3 and Pt/Al2O3 catalyst constituents acquired different surface charges in the course of photoelectron…
There is an increasing gap of misperception between the contribution of fundamental research to applications of technologies for electrical apparatus and systems and this paper aims at highlighting the contribution of base research to electrical asset management, referring to some of the major research themes in recen…
Composite nanoparticles of aerosol OT-alginate hydrogel loaded with Fe3O4and rhodamine 6G (R6G) in average diameter between 25 nm and 50 nm were synthesized by emulsification-cross-linking process and characterized by transmission electron microscopy (TEM) and SQUID magnetometery measurements. TEM measurements show th…
Polycarbonate has the reputation of having a tough breaking behaviour, but it is often unknown that this applies only to special conditions. The impact strength of polycarbonate depends on the temperature, the thickness (with a tough brittle transition at thickness increases), contribution of notch tip radius, impact…
A layer-by-layer (LbL) self-assembly strategy involving oppositely charged Ag nanoparticles was used to deposit a nanoshell of Ag nanoparticles on silica microspheres for trace chemical measurements in aqueous solutions by means of surface-enhanced Raman scattering (SERS). Positively charged Ag nanoparticles were prod…
Hybrid spintronic structures, integrating half-metallic magnetic oxides and Heusler alloys with their predicted high spin polarization, are important for the development of second-generation spintronics with high-efficient spin injection. We have synthesized epitaxial magnetic oxide Fe3O4on GaAs(100) and the unit cell…
Systems of magnetic nanowires are considered strong candidates in many technological applications as microwave filters, sensors or for data storage. The main parameter that controls the response of magnetic nanowires assemblies is the aspect ratio of the nanowires. In this paper we modify the aspect ratio by keeping c…